Gravel Driveway Calculator

Plan precise gravel requirements for simple or complex driveways of any size. Adjust length, width, thickness, layers, edging, compaction for consistent accuracy. See volume, weight, trucks, and budget clearly for every layout. Optimize coverage, reduce waste, deliver professional estimates with absolute confidence.

Project Inputs

Advanced mode

Define multiple driveway sections, choose units, specify depth and layers, include wastage and compaction, then instantly see required gravel volume, weight, trucks, and cost.

Unit System

Lengths in main unit, depth in smaller unit.

Material Density

Wastage Allowance (%)

Extra for shaping, trimming, losses.

Compaction Factor

Loose-to-compacted adjustment; 1.1 = 10% extra loose.

Currency

Material Price

Match your supplier quote basis for accurate budgeting.

Truck Capacity (metric tonnes)

Estimate number of delivery truckloads.

Driveway Sections

Use separate rows for different widths, depths, parking pads, or turning areas.

Label	Length	Width	Depth	Layers	Remove
	ft / m	ft / m	in / cm compacted

Summary Output

Results appear here after calculation. Includes adjusted volume, tonnage, trucks, and cost.

No calculation yet. Enter values and click "Calculate".

Download & Export

Export current results for records, quotes, or client proposals.

Example Gravel Driveway Layout

This example represents a typical residential driveway configuration. Use it as a starting point, then customize according to your actual site geometry.

Section	Length (ft)	Width (ft)	Depth (in)	Layers	Notes
Main run	60	10	4	1	Primary access lane
Parking pad	20	18	4	1	Two-vehicle parking zone
Turn-out	15	8	4	1	Turning or passing area

Formula Used

1. Convert dimensions to meters: feet × 0.3048; inches × 0.0254; centimeters ÷ 100.
2. Section volume: V_section = Length × Width × Depth × Layers (m³).
3. Sum all sections: V_total = Σ V_section.
4. Apply compaction: V_compacted = V_total × CompactionFactor.
5. Apply wastage: V_final = V_compacted × (1 + Wastage% / 100).
6. Convert units and weight as required for outputs.

How to Use This Calculator

Select unit system matching your drawings or on-site measurements.
Choose a density preset or enter a tested material density.
Enter wastage and compaction values based on installation practice.
Set currency, material price, and basis consistent with supplier quote.
Define each driveway, parking, or turn-out section in the table.
Click Calculate Gravel Requirements to generate full summary.
Use CSV or PDF export to document quantities and support quotations.

Typical Gravel Coverage Benchmarks

At 3 inches compacted depth: approximately 1.0 ton covers 80–90 ft².
At 4 inches compacted depth: approximately 1.0 ton covers 60–70 ft².
Use calculator outputs to refine beyond these quick rules-of-thumb.

Suggested Layer Build-Up Examples

Standard car driveway: 4" base + 3" surface graded aggregate.
Light commercial access: 6" base + 3–4" surface for durability.
Heavy vehicles or slopes: 8–12" base plus engineered drainage layer.

Cost Sensitivity for Gravel Driveways

Material cost usually represents 35–55% of total driveway budget.
Freight and truckloads significantly affect remote or rural projects.
Use multiple scenarios to compare price per m² or per ft².

Design Checks Before Ordering Material

Confirm final driveway width, turning radii, and parking geometry.
Check subgrade strength, drainage paths, and culvert requirements.
Verify thickness against expected traffic and local climate conditions.